RE: [PATCH] PM / runtime: Drop children check from __pm_runtime_set_status()

[Yoshihiro Shimoda]

Hi,

> From: Ulf Hansson, Sent: Monday, December 4, 2017 7:41 PM
> 
> On 1 December 2017 at 12:03, Yoshihiro Shimoda
> <yoshihiro.shimoda.uh@xxxxxxxxxxx> wrote:
<snip>
> > Sure! I tested your patch, and then the following message disappeared!
> >
> >    Enabling runtime PM for inactive device (ee080200.usb-phy) with active children
> 
> Great, that confirms my theory.
> 
> I will re-work the patch and re-post it to see what people thinks about it.

Thank you!

> >
> > However, the following message still exists.
> >
> >    Enabling runtime PM for inactive device (ee080000.usb) with active children
> >
> > So, I guess ohci-platform.c also has similar issue.
> 
> Yes, very likely!
> 
> However, I need some more time to look into this to be able to suggest
> a solution.

I found a solution and sent a report as below:
https://www.mail-archive.com/linux-kernel@xxxxxxxxxxxxxxx/msg1551146.html

What do you think about using pm_runtime_forbid()?

Best regards,
Yoshihiro Shimoda